Belongs within: Eulipotyphla.
Contains: Erinaceidae.
The Erinaceomorpha includes the modern hedgehogs (Erinaceidae) and their fossil relatives. Most fossil species are only known from their dentition, which is relatively unspecialised, and the inclusion or otherwise of taxa in this group has often been debated. According to Butler (1988), the earliest erinaceomorphs include Adunator from the Palaeocene of Europe and North America, with Adapisorex and Leipsanolestes also Palaeocene. Most other non-erinaceid erinaceomorphs are Eocene in age, though Ankylodon is Oligocene.
Characters (from Rose 2006): Dental formula 3.1.4.3/3.1.4.3; molars low-crowned, bunodont; M1-2 with moderately to well-developed hypocones; fourth premolars premolariform to submolariform.
<==Erinaceomorpha [Adapisoricidae, Creotarsinae, Erinaceoidea] | i. s.: TalpavoidesN85 | Chambilestes Gheerbrant & Hartenberger 1999 [Chambilestidae]GH99 | `--*C. foussanensis Gheerbrant & Hartenberger 1999GH99 | Xenacodon Matthew & Granger 1921V67 | `--*X. mutilatus Matthew & Granger 1921S35a | Creotarsus Mathew 1918 [Creotarsidae]V67 |--LitocherinaeB88 | | i. s.: CedrocherusB88 | |--LitocherusHUG17 | | |--L. lacunatusHUG17 | | |--L. notissimusHUG17 | | `--L. zygeusHUG17 | `--+--EolestesB88 | `--Litolestes Jepsen 1930B88, M60 | |--L. ignotusB88 | `--L. notissimus Simpson 1936M60 `--+--AdapisoricinaeV67 | | i. s.: Messelina Tobien 1962V67 | |--+--Neomatronella Russell et al. 1975N85, SM93 | | `--Adapisorex Lemoine 1883B88, V67 | | `--A. abundansB88 | `--+--Adunator Russell 1964B88, V67 [incl. DiacocherusB88, Mckennatherium Van Valen 1965B88, V67] | | |--A. ladae (Simpson 1935)B88, S35b [=Leptacodon ladaeV67, Mckennatherium ladaeV67; incl. M. libitumV67] | | |--A. lehmaniB88 | | `--A. minutusB88 | `--Diacodon Cope 1875B88, C77 [Diacodontinae] | |--*D. alticuspis Cope 1875V67 | |--D. celatus Cope 1875C77 | |--D. concordiarcensis (Simpson 1935)V67 | |--D. minutusS35a | |--D. packi (Jepsen 1930)V67 | |--D. pearcei Gazin 1956V67 | |--D. pineyensis Gazin 1952G52 | `--D. tauricinerei Jepsen 1930G52 `--+--ErinaceidaeB88 |--Leipsanolestes Simpson 1928B88, V67 | `--L. siegfriedti Simpson 1928 [=Leptacodon (Leipsanolestes) siegfriedti]S35a `--+--DartoniusB88 `--+--Talpavus Marsh 1872B88, V67 | `--T. duplusP96 `--ScenopagidaeB88 |--Sespedectinae [Sespedectidae]B88 | |--Crypholestes Novacek 1976N85 | | `--*C. vaughni Novacek 1976N85 | `--+--Proterixoides Stock 1935N85 | | `--*P. davisi Stock 1935N85 | `--Sespedectes Stock 1935N85 | |--*S. singularis Stock 1935N85 | `--S. stocki Novacek 1985N85 `--ScenopaginaeB88 |--Ankylodon Patterson & McGrew 1937B88, V67 | |--A. annectens Patterson & McGrew 1937M60 | `--A. progressus Galbreath 1953M60 `--Scenopagus McKenna & Simpson 1959M60 |--S. curtidensGH99 |--S. edenensisB88 |--S. mcgrewiM60 `--S. priscus (Marsh 1872)W96
*Type species of generic name indicated
References
[B88] Butler, P. M. 1988. Phylogeny of the insectivores. In: Benton, M. J. (ed.) The Phylogeny and Classification of the Tetrapods vol. 2. Mammals pp. 117–141. Clarendon Press: Oxford.
[C77] Cope, E. D. 1877. Report upon the extinct Vertebrata obtained in New Mexico by parties of the expedition of 1874. Geographical Surveys West of the One Hundredth Meridian 4 (2): i–iv, 1–370.
[G52] Gazin, C. L. 1952. The Lower Eocene Knight Formation of western Wyoming and its mammalian faunas. Smithsonian Miscellaneous Collections 117 (18): 1–82, 11 pls.
[GH99] Gheerbrant, E., & J.-L. Hartenberger. 1999. Nouveau mammifère insectivore (?Lipotyphla, ?Erinaceomorpha) de l’Eocène inférieur de Chambi (Tunisie). Paläontologische Zeitschrift 73 (1-2): 143–156.
[HUG17] Halliday, T. J. D., P. Upchurch & A. Goswami. 2017. Resolving the relationships of Paleocene placental mammals. Biological Reviews 92 (1): 521–550.
[M60] McKenna, M. C. 1960. The Geolabidinae: a new subfamily of early Cenozoic erinaceoid insectivores. University of California Publications in Geological Sciences 37 (2): 131–164.
[N85] Novacek, M. J. 1985. The Sespedectinae, a new subfamily of hedgehog-like insectivores. American Museum Novitates 2822: 1–24.
[P96] Prothero, D. R. 1996. Magnetic stratigraphy and biostratigraphy of the Middle Eocene Uinta Formation, Uinta Basin, Utah. In: Prothero, D. R., & R. J. Emry (eds) The Terrestrial Eocene–Oligocene Transition in North America pp. 3–24. Cambridge University Press.
Rose, K. D. 2006. The Beginning of the Age of Mammals. JHU Press.
[S35a] Simpson, G. G. 1935a. The Tiffany fauna, Upper Paleocene. I.—Multituberculata, Marsupialia, Insectivora, and ?Chiroptera. American Museum Novitates 795: 1–19.
[S35b] Simpson, G. G. 1935b. New Paleocene mammals from the Fort Union of Montana. Proceedings of the United States National Museum 83 (2981): 221–244.
[V67] Van Valen, L. 1967. New Paleocene insectivores and insectivore classification. Bulletin of the American Museum of Natural History 135 (5): 217–284.
[W96] Walsh, S. L. 1996. S. Middle Eocene mammal faunas of San Diego County, California. In: Prothero, D. R., & R. J. Emry (eds) The Terrestrial Eocene–Oligocene Transition in North America pp. 75–119. Cambridge University Press.